No.4（2001）3.Evaluation of uncertainty for the calibration of Low-Resistance Standard

Hiromasa MIZUNO and Morikazu HASEGAWA

An uncertainty component, which arises from a systematic effect, may in some cases be evaluated by method A while in the other cases by method B. This paper describes a evaluation of an uncertaity component by the arising from the calibration of a Low-Resistance Standard with the use of the range extender. The uncertainty of this calibration has been estimated according to the "Guide to the Expression of Uncertainty in Measurement". As a result, estimates of the low standard resistance expanded uncertainty(2σ) is as follows.

• 10mΩ  Low-Resistance Standard  ±8×10^-6
• 1mΩ  Low-Resistance Standard  ±14×10^-6

Keywords
Uncertainty, Calibration, Low-Resistance Standard

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